joethezombie
Well-known member
Sadly, the old thread was lost.
https://68kmla.org/forums/index.php?/topic/21280-se40-grayscale-need-help-with-a-carrera-hack/
So, I've gathered some information here to start anew.
I have attached v2 of the previously posted hacked control panel. It is untested.
View attachment CarreraSE40_v2.sit
I have also toned out the adapter card, here are the results:
All signaling from the PDS30 to the PDS passthrough slot are 1:1
All signaling from the PDS30 to the CACHE slot are 1:1 as well, with these exceptions:
CACHE A32 [/ROMOE] is n.c.
CACHE B23 [n.c.] is connected to PDS30 B01 [C40M]
CACHE B36 [CPUDIS] is n.c.
CACHE B40 [CACHE] is n.c.
CACHE C05 [/CFLUSH] is n.c.
CACHE C07 [n.c.] is connected to PDS30 A01 [/RBV]
CACHE C13 [/CENABLE] is n.c.
CACHE C17 [n.c.] is connected to A02 [/FPU]
CACHE C20 [n.c.] is n.c.
Interesting that some signals are ran over the n.c. pins.
Finally, I have included some photos of my set for reference.
https://68kmla.org/forums/index.php?/topic/21280-se40-grayscale-need-help-with-a-carrera-hack/
So, I've gathered some information here to start anew.
I have attached v2 of the previously posted hacked control panel. It is untested.
View attachment CarreraSE40_v2.sit
I have also toned out the adapter card, here are the results:
All signaling from the PDS30 to the PDS passthrough slot are 1:1
All signaling from the PDS30 to the CACHE slot are 1:1 as well, with these exceptions:
CACHE A32 [/ROMOE] is n.c.
CACHE B23 [n.c.] is connected to PDS30 B01 [C40M]
CACHE B36 [CPUDIS] is n.c.
CACHE B40 [CACHE] is n.c.
CACHE C05 [/CFLUSH] is n.c.
CACHE C07 [n.c.] is connected to PDS30 A01 [/RBV]
CACHE C13 [/CENABLE] is n.c.
CACHE C17 [n.c.] is connected to A02 [/FPU]
CACHE C20 [n.c.] is n.c.
Interesting that some signals are ran over the n.c. pins.
Finally, I have included some photos of my set for reference.